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(No Model.) 2 Sheets-Sheet 1. J. H. WATSON & O. H. HUBBELL.

FEED FOR GANG SAWS.

No. 331,590. P tented Dec. 1, 1885.

W ITJV'ESSES (No Model.) A v 7 2 sheets sheet 2. J. H. WATSON 800. H. HUBBELL.

FEED FOR GANG SAWS.- I No. 331,590. Patents Dec. 1, 1885.

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JAMES HENRY WATSON, OF TAWAS CITY, AND CHARLES HENDERSON HUB- BELL, OF EAST TAWAS, MICHIGAN; SAID CHARLES H. HUBBELL AS- SIGNOR OF ONE-HALF OF HIS RIGHT TO WILLIAM A. KELLY.

FEED FOR GANG-SAWS.

SPECIFICATION forming part of Letters Patent No. 331,590, dated December 1, 1885.

Application filed May 4, 1885. Serial No. 164,297. (No model.)

To all whom it may concern:

Be it known that we, JAMES H. WArrsoN, of Tawas City, Iosco county,State of Michigan, and CHARLES H. HUBBELL, of East Tawas,

Iosco county, and State of Michigan, have invented an Improved Feed for Gang-Saws, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 represents a side elevation of a gang-frame with our improvements attached. Fig. 2 is a top view of our peculiar clutch mechanism. Fig. 3 is a rear elevation of the same toward the lever G. Fig. 4 is a detached view of the lever G. Fig. 5 is a detached View of one of the circular wedges I.

Our invention consists in providing a new and improved feed for gang and muley saws; and it consists in the combination of devices hereinafter explained and definitely claimed.

In the drawings, A represents a shaft, on which is an eccentric, B, and eccentric-yoke C C. To this is secured the connectingrod D, the upper end of which is attached to the end of the rocking arm E. This arm is slotted nearly its full length, the opposite end being pivoted to the gang-frame or to any other suitable support in such a way as not to interfere with its rocking motion. The bed-sills, track, carriage,wheels, and other parts of the sawmill not shown in the drawings may be of any customary or suitable form,as they constitute no part of our invention.

To the rocking arm E is attached the connecting-rod F, the upper end of which is pivoted to the horizontal frictionlever G. This lever enters into and forms a part of the clutch mechanism, as shown in Figs. 2 and 3. A head which surrounds the shaft H is wedge or cam shaped, having shoulders at on each side of the arm, as shown in Figs. 3 and 4, the space between the outer edges of these shoulders being the widest portion of the head of the lever. These shoulders a fit against the shoulders a on the circular Wedges I, as shown in Fig. 5, which moveloosely on the shaft H. Outside of the wedges I we place the butting blocks or collars J J, rigidly attached to the shaft, the block J being adjustable on the shaft, in order to take up any wear or lost motion.

From the construction of the clutch as described and illustrated it is evident that when an upward movement is given to the friction 5 5 v lever or arm G through the medium of the eccentric B, connecting-rod D, rocking arm E, and rod F the shaft H and gear or pinion K on the said shaft will remain stationary; b

in the downward motion of the friction-lever with a block or sliding connection, f, in the 0 slotted rocking arm E,and to this sliding block is attached a connecting'rod,E,running horizontally to the lower end of the vertical handlever M,whioh, being fulcrumed near its center, Works in a quadrant, M,on the floor above. 7 5 Now,if this haud-lever be moved to the right,

as indicated in dotted lines at N, the sliding blockf and the lower endof the rodF will be moved nearer to a point over the connectingrod D, which will necessarily increase the throw of the friction-lever G, the lever getting its greatest throw when the sliding block is broughtnearestovertherodD. Thisincreased movement of the friction-lever G increases in like ratio the feed at each stroke or revolution 8 5 of the eccentric. If the reverse movement be given to the hand-lever, the reverse effect is produced on the feed, and when the sliding block and foot of the rod F reach the opposite end of the slotted arm Ethe motion of the leverG will have entirely ceased.

The quadrant M is ruled to show at a glance the amount of feed being carried with the lever at any point of the quadrant.

On the wedges I I we attach springs i i, which 9 5 rest with some tension upon the frictionlevcr G, so as to keep the wedges always thrown back to avoid lost motion. The butting block or collar J is constructed with a ratchet on its outer periphery, into which fall the pawls an, attached to the lever T, as shown in Fig. 2. By the use of this pawl-and-ratchet mechanism we prevent any backward motion of the feed, and also recede the rolls when necessary.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination, in a feed mechanism, of the shaft A, eccentric B, and connecting-rod D with the slotted rocking armE, connecting-rod F, and the clutch-lever G, all constructed and combined substantially as and for the purpose set forth.

2. The clutch-lever G and shaft H, in combination wit-h the wedge-pieces I, buttingblocks J J, and gear K, with mechanism, as described, for operating the clutch, substantially as herein described.

3. The clutch-lever G, provided with the shoulders a, in combination with the wedgepieces': I, provided with the shoulders a, and turning loosely on the shaft H, and the butting-blocks J J, rigidly attached to the shaft H, substantially as and .for the purpose set forth.

4. The clutch-lever G,Wedge pieces I I, and butting-blocks J J, the block J being provided with a ratchet on its outer periphery, incombination with the lever T and pawls m, all constructed to operate substantially as and for the purpose set forth.

5. The slotted rocking arm E, connectingrod F, provided with sliding block f, and friction-lever G, in combination with the connecting-rod E and vertical lever M,all constructed to operate substantially as and for the purpose herein set forth.

' JAMES HENRY WATSON.

' CHARLES HENDERSON HUBBELIJ. Witnesses:

V. H. NEWMAN, J. H. ScHMEoK. 

